Nut-lock.



NUT LOCK,

APPLICATWN HLED JULY l?, ISH.

Sg GA CRMACK.

, L im Wi messes Ulll SAMUEL (1l-BADEN CRMACK, Ol? MADISCNVXLLE, KENTUCKY.

NUT-LOCK.

Application led July 17,

- To all whom i may concern.'

Be it known that I, SAMUEL GRADEN CAR- MACK, a citizen of the United States, residing at Madisonville, in the county of Hopkins and State oi Kentucky, have invented a new and useful Nut-Lock, of which the ,following is a specification.

1t is the object of this invention to provide a device of novel form, adapted to hold a nut against rotation, and to sustain against rotation, the Washer Wherewith the nut engages, novel moans being provided for holding the nut locked on the material through which the bolt passes.

It is Within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which 'the present invention appertains.

With the above and other objects in view Whichwill appear as the description proseeds, the invention resides in the combination and arrangement of parts and in the details of construction. hereinafter described an d claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made Within the scope of what is claimed, Without departing from the spirit of the inventori.

ln the zuconfqianyingh drawings Figure 1 shows in side elevation, a piece of material whcreunto the structure forming the subject matter of vthis application has been applied.;

Fig'. i). is a top plan of the device shown in Fi 1' igf is a longitudinal section taken on the line 3 3 of Fig. 2;

Fig. 4 is a top plan of the nut lock, detached, one arm of the lock being broken away, and the washer being supported on the other end of the nut lock;

' Fig. 5 is a perspective showing the working end of the nut lock, parts'being broken away. 1

The nut lock forming the subject matter of this application is made out of resilient metal and is of approximately V-shape when ,viewed in side elevation, as disclosed in Fig.

1, the nut lock including an inner arm 2 and an outer arm 1. 1n the free end of the outer arm 1. a notch 3 is formed, the same Specicaton of Letters Patent.

EPatented Mar. 1 2, 1918.

Serial ilo. 181,123.

defining nut-engaging fingers 4, which may be offset slightly, as shown at 5, to facilitate the compression is 'the arm 1, hereinafter described The inner arm 2 terminates at its free end in a reduced neck 6 carrying a tubular socket 7 disposed at right angles to the arm 2, the socket 7 being split as shown-at 8, 'to addto the resiliency of the socket. In the inner arm 2, transverse slits 9 are fashioned, and the material set tree by the formation of the slits 9 is bent over on top of the neck 6 to form tongues 10, the outer edges Of the tongues constituting a shoulder 11, having dZonctions herein after described.

The numeral 12 denotes the material, havi' 5 a holt hole lll. The socket 7 is driven down into the holt holo 14C and is held therein by friction, due to the expansibility of the socket, the inner arm 2 resting on the material 14, in a Way which will be obvious from Figs. l. and 3. A bolt 15 is thrust throngh'the bolt hole 14 and through the socket i, the holt iittino,r closely in the socket. fr 'Washer 1G is placed around the bolt 15 w .ts on the outer end of the socket 7, one edge ot the washer engaging the shoulder so that the washer cannot rotate.v

The outer arm l then is pressed toward the arm 2 until the iin-gers l lie on each side of the Washer 1G and below the upper face of the Washer, presupposing that the bolt l5 is arranged iff'ertically as shown in Fig. 3. Ilznut 17 then is threaded onto the free end or the bolt 15. The nut 17 is turned by hand, far friction will permit, and then a wreneh'is applied to the nut. The Wrench holds the arm l compressed and the fingers Il depressed. The nut 17 is rotated to a on the washer 16, by the wrench. The wrench is then removed, and the arm 1 0will swing upwardly into the position shown in Fig. 3, the lingers l engaging the sides of the nut 17 and holding` the latter against rotation The nut 17 and `the Washer 16 may, of course,'be shaped as desired.

Having thus described the invent1on,wl1at is claimed is 1. A nutlock comprising superposed inner and outer arms, the outer arm being resilient and being provided terminally with nut engaging meansrand the inner arm being' provided with a projecting, tubular, be t-receiving socket.

2. A nut lock constructed in accordance i In testimony that I claiml the foregoing as my own, I have hereto aiiixed my signat@ ture in the presence of two Witnesses.

, with claim l, and further characterized by SAMUEL GRADEN CABMAGK' the fact that the inner arm is provided, Witnesses: adjacent the socket, with a transverse, Mrs. S. R. CARMAGK', Washerengaging shoulder. W. C. MCLEOD 

